add documentation

[krother]

Make sure documentation compiles with Sphinx. Requires finding out in which repository the current documentation from genesilico/moderna is.

[krother]

Also check whether https://readthedocs.org can be plugged to our repository.

[lenarother]

The old documentation is now in. Perhaps, we will need better directory structure for that. For now everyting is directly under docs and logo is in docs/_static.

[lenarother]

Find out who has access to http://www.genesilico.pl/moderna (TP?) and move the documentation from the old page to github.

[lenarother]

In the documentation add info that if one is using moderna without installation or using it as repository it is necessary to modify PYTHONPATH.

[krother]

Tomek sent us the moderna_django archive. This is how it looks like ;-D